A166279 - OEIS

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A166279 as a triangular array

1

1 1

1 2 1

1 1 1 1

1 2 2 2 1

1 1 0 0 1 1

1 2 1 0 1 2 1

1 1 1 1 1 1 1 1

1 2 2 2 2 2 2 2 1

1 1 0 0 0 0 0 0 1 1

1 2 1 0 0 0 0 0 1 2 1

1 1 1 1 0 0 0 0 1 1 1 1

1 2 2 2 1 0 0 0 1 2 2 2 1

A166279 as a square array

1 1 1 1 1 1 1 1 1 1 1 1 1

1 2 1 2 1 2 1 2 1 2 1 2

1 1 2 0 1 1 2 0 1 1 2

1 2 0 0 1 2 0 0 1 2

1 1 1 1 2 0 0 0 1

1 2 1 2 0 0 0 0

1 1 2 0 0 0 0

1 2 0 0 0 0

1 1 1 1 1

1 2 1 2

1 1 2

1 2

1

A166279 as an upper right triangle